I-205 - Mill Plain Interchange to 18th Street Improvements: (I-205 mileposts 27.22 to 30.28)Traffic Impacts: Monday, March 2 to Friday, March 6: Drivers should expect intermittent, single and double-lane closures on both directions of I-205, between Mill Plain and 18th Street, nightly. Single-lane closures will be from 8 p.m. to 6 a.m., and double-lane closures will be from 11 p.m. to 5 a.m., for concrete and median work. Work is weather dependent.